net: trans_start cleanups

Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Drivers can avoid one cache miss
(on dev->trans_start) in their start_xmit() handler.

Exceptions are NETIF_F_LLTX drivers

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
index 65dd502eab0d..1e61e6cace90 100644
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -1307,7 +1307,7 @@ static void wl3501_tx_timeout(struct net_device *dev)
                 printk(KERN_ERR "%s: Error %d resetting card on Tx timeout!\n",
                        dev->name, rc);
         else {
-                dev->trans_start = jiffies;
+                dev->trans_start = jiffies; /* prevent tx timeout */
                 netif_wake_queue(dev);
         }
 }
@@ -1326,7 +1326,6 @@ static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
 
         spin_lock_irqsave(&this->lock, flags);
         enabled = wl3501_block_interrupt(this);
-        dev->trans_start = jiffies;
         rc = wl3501_send_pkt(this, skb->data, skb->len);
         if (enabled)
                 wl3501_unblock_interrupt(this);